The method takes advantage of measuring natural Radon(Rn) from the radioactive decay of radioisotope Radium in the core sample instead of fluid injection /saturation as in common porosity measurement.
为了探索既不改变原有孔隙、又不污染岩石的孔隙度测定新方法 ,以岩石中天然放射性同位素镭 2 2 688 Ra 递次衰变释放出的氡气替代常规孔隙度测定中的注入或饱和流体 ,进行了岩心孔隙度测定方法的新尝试。
The study on the calculation for the excess pore-water pressure of the earthquake on the earth dam;
土坝地震附加孔隙水压力计入方法的探讨